Q: What are the prime factors of the number 392,544?

 A: 2, 3, 29, 47

Why are those the prime factors of the number 392,544?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 392,544

392,544
Factor Arrows
2196,272
Factor Arrows
298,136
Factor Arrows
249,068
Factor Arrows
224,534
Factor Arrows
212,267
Factor Arrows
34,089
Factor Arrows
31,363
Factor Arrows
2947

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 29, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 29 x 47 = 392,544

This can also be written as 25 x 32 x 291 x 471 = 392,544

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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